Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055497 | Method of measuring concentration of nitrogen in diamond and apparatus that measures concentration of nitrogen in diamond | Masayuki Nishizawa, Momoko Iida | 2024-08-06 |
| 11878354 | Method of manufacturing diamond tool intermediate and method of making determination for single-crystal diamond | Masayuki Nishizawa | 2024-01-23 |
| 10293415 | Cutting tool and cutting method | Makoto Yamasaki, Shiro Nagami, Junichi Marui, Yoshiki Nishioka, Fumihiro Itoigawa +1 more | 2019-05-21 |
| 10046397 | Diamond coated tool | Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Shinji Matsukawa | 2018-08-14 |
| 9731355 | Diamond coated tool | Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Shinji Matsukawa | 2017-08-15 |
| 9308589 | Drill | Hisao Oka, Yoshiji Sato, Junichi Tamura, Satoshi Suzuki | 2016-04-12 |
| 9302327 | Diamond coated tool | Katsuhito Yoshida, Shigeru Yoshida, Yuichiro Seki, Shinji Matsukawa | 2016-04-05 |
| D693861 | Drill | Yoshiji Sato | 2013-11-19 |
| 8119241 | Method for manufacturing diamond monocrystal having a thin film, and diamond monocrystal having a thin film | Akihiko Ueda, Yoshiyuki Yamamoto, Yoshiki Nishibayashi, Takahiro Imai | 2012-02-21 |
| 7955434 | Diamond single crystal substrate | Yoshiyuki Yamamoto, Takahiro Imai | 2011-06-07 |
| 7892356 | Diamond composite substrate and process for producing the same | Yoshiyuki Yamamoto, Takahiro Imai | 2011-02-22 |
| 7807126 | Diamond single crystal substrate | Yoshiyuki Yamamoto, Takahiro Imai | 2010-10-05 |
| 7771693 | Diamond single crystal substrate manufacturing method | Yoshiyuki Yamamoto, Takahiro Imai | 2010-08-10 |
| 7655208 | Single crystalline diamond and producing method thereof | Yoshiyuki Yamamoto, Takahiro Imai | 2010-02-02 |
| 7615203 | Single crystal diamond | Yoshiyuki Yamamoto, Takahiro Imai | 2009-11-10 |
| 7534360 | Method of making diamond product and diamond product | Yoshiki Nishibayashi, Takahiro Imai, Yutaka Ando | 2009-05-19 |
| 7524372 | Method for manufacturing diamond single crystal substrate | Yoshiyuki Yamamoto, Takahiro Imai | 2009-04-28 |
| 7481879 | Diamond single crystal substrate manufacturing method and diamond single crystal substrate | Yoshiyuki Yamamoto, Takahiro Imai | 2009-01-27 |
| 7407549 | Diamond single crystal composite substrate and method for manufacturing the same | Yoshiyuki Yamamoto, Takahiro Imai | 2008-08-05 |
| 7390695 | Diamond substrate and manufacturing method thereof | Keisuke Tanizaki, Akihiko Namba, Yoshiyuki Yamamoto, Takahiro Imai | 2008-06-24 |
| 6958571 | Electron-emitting device | Yoshiki Nishibayashi, Yutaka Ando, Takahiro Imai | 2005-10-25 |
| 6837935 | Microwave plasma film-forming apparatus for forming diamond film | Takashi Matsuura, Takahiro Imai | 2005-01-04 |
| 6709730 | Method of making diamond product and diamond product | Yoshiki Nishibayashi, Takahiro Imai, Yutaka Ando | 2004-03-23 |
| 6641861 | Heatsink and fabrication method thereof | Hirohisa Saito, Yoshiyuki Yamamoto, Takahiro Imai | 2003-11-04 |
| 6458415 | Method of forming diamond film and film-forming apparatus | Takashi Matsuura, Takahiro Imai | 2002-10-01 |